1026 Advanced Composites Cataract SGG Oar Shaft - You don't have to know rocket science to row a boat, but it helps to have gear made by a company who does. Cataract SGG oar shafts are made with the same filament wound glass/carbon/epoxy composite technology by the aerospace industry. Only superior continuous carbon and glass fibers and high strength resins are , and over forty years of filament winding experience goes into every oar. The SGG oar shaft flexes like wood and rebound like carbon, translating muscle energy into stroke power more effectively and giving you the ultimate in responsiveness. They require less maintenance than wood oars and have over twice the breaking strength of 817882010566